JP7683937B2 - Conveyor chain adhesion prevention device - Google Patents

Description

The present invention relates to a device for preventing adhesion of conveyor chains in conveyor devices such as flight conveyors that transport materials such as incineration ash mixed with powders, moist ash, etc., in order to prevent adhesion that would impede the movement of the conveyor chain.

When transporting materials such as incineration ash that contain moisture, a scraper conveyor is used to move the material by sweeping it away with a scraper. In this case, the scraper is driven by a conveyor chain attached to the scraper.

This conveyor chain is made up of pins, bushes, rollers and plates, and sometimes incineration ash or other materials get in between the connections or sliding points. When the moisture in the incineration ash evaporates, the ash solidifies, causing the connections or sliding points to move poorly, and the rollers may no longer rotate smoothly.

If the rollers do not rotate, sliding resistance occurs between the rollers and the guide rails, which increases the energy required to operate the device and can lead to increased electricity consumption.

In addition, non-rotating rollers would slide on the guide rail, causing wear on the rollers and the guide rail, placing excessive strain on the conveyor chain, and shortening the lifespan of the conveyor chain and the rail.

For this reason, it is desirable to remove the incineration ash and other debris that has become trapped between the pins, rollers, and plates of the conveyor chain. If this debris is not removed for a long period of time or if maintenance is not performed, the conveyor chain will become stuck, and it is desirable to prevent this from happening.

Conventionally, when incineration ash and other materials are transported by conveyor, most conveyors are casing type, making it impossible to see inside the conveyor. This means that it is impossible to directly see the amount of incineration ash being transported, the transport status, the conveyor drive status, etc., making it difficult to understand the operation of the conveyor.

For this reason, it is desirable to measure the tension of the conveyor chain in order to understand the condition inside the conveyor, thereby making it possible to visualize the operation inside the conveyor, predict wear on the conveyor chain, deformation of the guide rail, etc., and plan the timing of part replacement, etc.

However, when measuring the tension of a conveyor chain inside a conveyor, it is assumed that the conveyor chain itself is operating normally.

In other words, a conveyor chain operating normally means that there is no incineration ash or other material stuck between the pins, bushes, rollers and plates that make up the conveyor chain, the conveyor chain is not bent or stuck, and the rollers that make up the chain are rotating smoothly on the guide rails.

When ash containing moisture gets in between the plates that make up the conveyor chain and the moisture evaporates and the ash hardens, the plates, which should be able to slide smoothly over the guide rails, can become difficult to bend smoothly, and can even become stuck in a bent position, causing poor bending.

In addition, when the plate becomes bent and stuck in this way, the overall length of the left and right conveyor chains changes, resulting in different lengths for the left and right conveyor chains. This makes it impossible to accurately measure the tension of the conveyor chains, and because the left and right conveyor chains are different lengths, it is difficult to adjust the chain tension appropriately by performing the take-up operation.

Furthermore, a poorly bent conveyor chain could come into contact with the guide rail and break, making it necessary to stop the conveyor from operating.

For this reason, currently, the problem is that the chain and rollers are struck with a hammer or similar tool about once a month on non-rotating parts of the chain or rollers to remove any stuck areas.

This work was effective in eliminating the sticking caused by poor bending, but it was dangerous because it was done while the conveyor was running. Also, in order to stop the conveyor equipment periodically for long periods of time, the incinerator had to be stopped as well, which affected the operation and maintenance of the system, and was not efficient. Furthermore, if the regular work was not performed, the entire conveyor could stop due to the chain sticking or poor bending, which would also stop the incinerator.

In addition, even when the conveyor chain was in a normal condition, it was difficult to measure the chain tension, and if the chain had a bending defect, it was even more difficult to measure the tension accurately.

In addition, if incineration ash or other materials get stuck between the scraper and the bottom plate of the conveyor, the jam can be cleared by rotating the conveyor forward and backward, but it has been difficult to perform this operation automatically. The reason for this is that if the chain is not properly bent, reversing the movement could lead to an accident that could damage the conveyor itself.

Therefore, if bending defects can be prevented from occurring, the forward and reverse rotation of the conveyor chain can be automated, which is extremely effective.

The purpose of this invention is to provide a conveyor chain adhesion prevention device that applies impact periodically to the conveyor chain to remove ash and other particles that may have gotten into pins, bushes, rollers, and plates and cause adhesion, and to prevent any particles that have gotten in from getting stuck.

JP 2021-141052 A Chain Cleaning Mechanism This document discloses a mechanism for cleaning a chain using a rotating brush. However, cleaning with a rotating brush makes it difficult to remove ash and other particles that have gotten into the small gaps between the chain pins and rollers, and is unable to deal with cases where adhesion has already occurred between the roller and the plate.

When transporting incineration ash, etc., using a conveyor, it is possible to see the amount of material being transported, the transport status, the conveyor drive status, etc., and to understand the operation of the conveyor, by measuring the chain tension, it is possible to visualize the operation within the conveyor, predict chain wear, rail deformation, etc., and also make it possible to plan the timing of part replacement.

To ensure that the conveyor chain can move smoothly, any ash or other debris that has gotten into the gaps between the pins, rollers, plates, etc. that make up the conveyor chain and adheres to it due to impact is removed, and the adhesion is prevented from becoming solidified.

In addition, by understanding the changes in tension on the left and right conveyor chains, it is possible to grasp the slack in the conveyor chain and easily adjust the tension of the chain appropriately by taking up the driven shaft.

In addition, it will reduce wear on the conveyor chain, extend its lifespan, save energy, and reduce wear on guide rails, sprockets, etc., thereby lowering running costs and contributing to decarbonization.

In addition, in the past, the time (period) for which the device was activated was determined by the degree of adhesion of ash and other substances to the chain, and workers would strike the chain with a hammer once or twice a month. However, this eliminates the need to stop the conveyor, inspect the inside of the conveyor, and have workers use a hammer or other tool to dissolve stuck chains, providing a conveyor chain adhesion prevention device that is superior in terms of safety and reduced labor costs.

Here, based on Figures 10 to 17, we will explain the situation in which incineration ash and other materials adhere to the conveyor chain, causing the conveyor chain to lose its inherent flexibility.

Figure 10 is an explanatory diagram showing the configuration of the roller portion of a conveyor chain.

In FIG. 10, 31 is a conveyor chain, consisting of an inner link 32 and an outer link 33. 8 is a roller. 34 is a pin, and the outer link 33, the inner link 32, and the roller 8 are secured by a T-pin 36 on the opposite side. 35 is a bush.

Figure 11 shows a state in which ash has entered between the roller 8 and the bush 35. If ash enters the area indicated by the diagonal lines in Figure 11, the ash and other particles that have entered between the roller 8 and the bush 35 will hinder the smooth rotation of the roller 8.

Figure 12 shows a state in which ash gets in between the roller 8 and the inner link 32. If ash gets in the area indicated by diagonal lines in Figure 12, the ash and other particles between the roller 8 and the inner link 32 will hinder the smooth rotation of the roller 8.

Figure 13 is a diagram that explains the wear state of the rollers when ash or other debris gets stuck in the rollers of the conveyor chain and the rollers stop rotating.

As shown in Figures 11 and 12, if ash gets into the gap, the rotation of the roller 8 will be impaired, and as shown in Figure 13, the roller 8 may become worn. In addition, wear on the roller 8 will also cause wear on the guide rail 11, shortening the lifespan of the conveyor chain 31 and the guide rail 11.

Furthermore, Figure 14 shows a state in which ash has entered between the inner link 32 and the outer link 33. Ash may enter the area indicated by diagonal lines in the figure, preventing smooth sliding between the inner link 32 and the outer link 33. In this case, if ash becomes stuck between the inner link 32 and the outer link 33, it becomes difficult to bend the link.

Figure 15 is a side view of a conveyor chain showing a bent condition.

In some cases, the ash would harden in a poorly bent state, as shown in Figure 15. When the ash hardens, it is because moisture-containing ash gets between the inner ring 32 and the outer ring 33, and when it subsequently dries and the moisture disappears, the inner ring 32 and the outer ring 33 are no longer able to slide smoothly.

Figure 16 is a side view of a conveyor chain that is poorly bent when it is rotating forward, and Figure 17 is a side view of a conveyor chain that is poorly bent when it is rotating reverse, and shows how the conveyor chain is poorly bent when it is rotating reverse.

In the case of forward rotation in Figure 16, when the drive shaft 38 drives the chain 31 along the circumference of the head sprocket 40, if there is a bending defect in the conveyor chain 31, the roller 8 may get caught on the end of the guide rail 11, causing the chain to break or the guide rail 11 to be damaged or distorted.

Even in the case of reverse rotation as shown in Figure 17, if the conveyor chain 31 is poorly bent when the drive shaft 38 drives the chain 31 along the circumference of the head sprocket 40, the roller 8 may get caught on the end of the guide rail 11, causing the chain to break or the guide rail 11 to be damaged or distorted.

Because of the possibility of these situations occurring, it was difficult to automate the forward and reverse operation of the conveyor.

The present invention provides a device for preventing adhesion of such ash and other materials to conveyor chains, preventing poor roller rotation and poor bending of the conveyor chain, and enabling the conveyor to be driven automatically.

The first invention is a conveyor chain adhesion prevention device that includes a base provided on both sides of a double conveyor chain, two bearings attached to the base, a rotatable shaft that passes through the bearings, an arm fixed to the shaft, a weight attached to the tip of the arm, and a cam fixed to the shaft that can be inserted between the plates of the conveyor chain. In accordance with the movement of the conveyor chain, the cam comes into contact with the rollers of the conveyor chain to rotate the shaft and lift the weight attached to the tip of the arm, and when the cam is no longer in contact with the rollers of the conveyor chain, the weight strikes the rollers of the conveyor chain.

The second invention is a conveyor chain adhesion prevention device that includes left and right pedestals provided on the left and right sides of a double conveyor chain, left and right bearings attached to the left and right pedestals, left and right shafts that pass through the left and right bearings and can rotate, left and right arms fixed to the left and right shafts, left and right weights attached to the tips of the left and right arms, and left and right cams fixed to the left and right shafts and that can be inserted between the plates of the conveyor chain. In accordance with the movement of the conveyor chain, the left and right cams come into contact with the rollers of the conveyor chain to rotate the left and right shafts and lift the left and right weights attached to the tips of the left and right arms, and when the left and right cams are no longer in contact with the rollers of the conveyor chain, the left and right weights strike the rollers of the conveyor chain separately on the left and right.

The third invention is a device for preventing adhesion of a conveyor chain, in which the position where the weight strikes the roller of the conveyor chain is set at a position where there is a gap in the guide rail.

The fourth invention is a conveyor chain adhesion prevention device that allows the position of the weight attached to the tip of the arm to be adjusted.

The fifth invention is a conveyor chain adhesion prevention device that allows the position of the cam, the length of the arm, and the weight of the weight to be adjusted.

The sixth invention is a device for preventing adhesion of a conveyor chain that can fix the arm to the upper part so that the cam does not come into contact with the roller.

The seventh invention is a conveyor chain adhesion prevention device that collects the sounds of the left and right weights striking the left and right rollers, respectively, checks the difference between the left and right sounds, and can recognize when the left and right chains are stretched, as well as calculate the difference in length between the left and right chains from the time difference between the left and right sounds.

With this invention, even if ash or other particles get into the gaps in the conveyor chain, the adhesion prevention device can impact the conveyor chain to shake off the ash or other particles, preventing them from adhering to the chain or becoming fixed and stuck.

In addition, it is now possible to adjust the impact position of the weight so that the adhesion prevention device can be operated efficiently.

The anti-adhesion device does not need to be constantly operating, and can be turned off when the conveyor needs to rotate in reverse. Furthermore, the sound of the weight striking the roller can be collected to check for sound misalignment and calculate the difference in length between the left and right chains.

This allows the conveyor chain to be driven smoothly, and the presence and amount of transported goods can be accurately measured based on the measurement data of the tension of the conveyor chain, making it possible to "visualize operation."

In addition, based on the tension measurement data, the movement of the scraper conveyor can be automatically controlled to operate intermittently or at a slower speed, resulting in energy savings.

In addition, wear on conveyor chains, guide rails, and sprockets can be reduced, the number of parts that need to be replaced can be reduced, and the longer life of the parts means that the number of parts to be manufactured can be reduced, leading to decarbonization.

In addition, because the present invention allows the conveyor chain to be driven smoothly, the tension on the chain of the scraper conveyor can be measured, recorded, and the tension data analyzed based on the tension value, allowing for an accurate understanding of the engagement between the scraper of the scraper conveyor and the bottom plate, providing operational support to ensure normal operation and contributing to work style reform.

Furthermore, because the present invention allows the conveyor chain to be driven smoothly, it is possible to measure the tension on the chain of the scraper conveyor, record that tension, and analyze the tension data based on the tension value, thereby making it possible to grasp changes in the left and right direction of the conveyor, when it is time to replace the chain, and the condition of the chain.

For example, if the chain tension on the left side tends to be high, it can be assumed that the rails of the left conveyor are worn out or damaged, and inspection can be carried out sooner, making it possible to prevent fatal problems before they occur.

In addition, based on the tension measurement, the chain elongation can be calculated and adjustments can be made to take up the conveyor chain.

Furthermore, by preventing bending defects in the conveyor chain, the forward and reverse rotation of the conveyor chain can be automated, making the conveyor operation more efficient.

1 is a plan view of a conveyor chain anti-adhesion device according to the present invention; 1 is a side view of a conveyor chain anti-adhesion device according to the present invention; 1 is a front view of a conveyor chain adhesion prevention device according to the present invention; FIG. 13 is a side view illustrating a case where the adhesion prevention device of the conveyor chain of the present invention is stopped. FIG. 2 is an explanatory diagram showing the flow of operation of the cam of the anti-adhesion device for conveyor chain of the present invention. FIG. 2 is an explanatory diagram showing the flow of operation of the cam of the anti-adhesion device for conveyor chain of the present invention. FIG. 2 is an explanatory diagram showing the flow of operation of the cam of the anti-adhesion device for conveyor chain of the present invention. FIG. 2 is an explanatory diagram showing the flow of operation of the cam of the anti-adhesion device for conveyor chain of the present invention. 1 is a front view of a conveyor chain adhesion prevention device according to another embodiment of the present invention; An explanatory diagram showing the structure of the roller part of a conveyor chain. Illustration of conveyor chain rollers clogged with ash etc. Illustration of conveyor chain rollers clogged with ash etc. A diagram explaining the wear state of a roller when ash or other debris gets stuck on the roller part of a conveyor chain and the roller stops rotating. Illustration of conveyor chain rollers clogged with ash etc. Side view of conveyor chain showing improper bending A side view of a conveyor chain that is in a bad bend and comes into contact with a guide rail during normal rotation. A side view of a conveyor chain that is not properly bent and comes into contact with a guide rail when the conveyor is reversed. FIG. 1 is an explanatory side view of a scraper conveyor, illustrating an example of an attachment state of an anti-adhesion device for a conveyor chain according to the present invention.

Example 1
FIG. 1 is a plan view of an anti-adhesion device for a conveyor chain according to the present invention.
In addition to scraper conveyors, the present invention can also be used for conveyors driven by two conveyor chains, such as apron conveyors, bucket elevators, and slat conveyors, and is a device for preventing adhesion of conveyor chains. In addition, the present invention can be used as a device for preventing adhesion of conveyor chains not only for top-return type scraper conveyors, but also for other scraper conveyors.

Furthermore, it is applicable to flow conveyors with a single conveyor chain.

In Figure 1, 1 is a base that is installed on both sides of the double conveyor chain. 2 is a bearing that is attached to base 1. Bearing 2 can be adjusted by changing the mounting position of base 1.

3 is the shaft, which passes through the left and right bearings 2 and can rotate within the bearings 2.

4 denotes an arm, which is fixed to the shaft 3. The length, shape, strength, etc. of the arm 4 can be adjusted as appropriate. By fixing the arm 4 to the shaft 3, the left and right arms 4 can be lifted simultaneously.

5 is a weight that is attached to the tip of the arm 4. The weight, size, material, etc. of the weight 5 can be adjusted as appropriate. The attachment position of the weight 5 can also be adjusted as appropriate at the tip of the arm 4. The weight 5 can also be provided rotatably on the chain without being fixed to the arm 4.

6 is a plate that makes up the conveyor chain and consists of an outer plate and an inner plate.

Figure 2 is a side view of the conveyor chain adhesion prevention device of the present invention.

Figure 3 is a front view of the conveyor chain adhesion prevention device of the present invention.

In Figure 2, 7 is a cam that can be inserted between the plates 6 that make up the conveyor chain.

8 is a roller that makes up the conveyor chain and is fixed with a plate and pin.

The cam 7 is capable of lifting the weight 5 by contacting the roller 8.

A stopper 9 is provided to prevent the cam 7 from moving backward.
In FIG. 3, reference numeral 10 denotes a scraper which is attached to a conveyor chain and enables the conveying of objects.

In Figure 2, 11 is a guide rail that serves to guide the conveyor chain.

In particular, by not providing a guide rail 11 at the position where the weight 5 strikes the roller 8, the weight 5 can deliver a stronger impact to the roller 8, resulting in an excellent prevention effect of the conveyor chain from sticking.

Figure 4 is a side view illustrating the case where the anti-adhesion device for a conveyor chain of the present invention is stopped.

In FIG. 4, 12 is a fixed part that is attached to the base 1. 13 is a pin. When the anti-adhesion device for the conveyor chain is not in operation, the pin 13 is fixed to the fixed part 12. In this case, the cam 7 is separated from the roller 8, so the operation of the anti-adhesion device can be stopped.

If the operation of the adhesion prevention device is sufficient for a few hours a week, this can be solved by lifting the weight 5 manually or automatically. In addition, as a means for automatically lifting the weight 5, it is also possible to operate it automatically periodically using a cylinder or the like.

In this embodiment, an example is shown in which the pin 13 is engaged with the fixed portion 12. The engagement method is not limited to the pin, and a hooking method is also possible.

Next, we will explain the flow of operation when the cam 7 and roller 8 are in contact.

Figures 5 to 8 are explanatory diagrams showing the sequence of cam operation of the conveyor chain adhesion prevention device of the present invention.

Each drawing illustrates the case where the conveyor chain is moved from left to right. The positions of the rollers 8 are indicated by symbols (a), (b), and (c) to show the movement.

Figure 5 shows the state where the cam 7 is not in contact with the roller 8, while Figure 6 shows the state where the cam 7 is in contact with the roller 8 and the weight 5 is gradually lifted in accordance with the movement of the conveyor chain.

Figure 7 shows the state when the tip of the cam 7 is aligned with the roller 8 and the weight 5 is in its highest position. Figure 8 shows the moment when the cam 7 loses contact with the roller 8 and the weight 5 strikes the roller 8.

In the position shown in Figure 5, the cam 7 is in contact with the stopper 9 and the weight 5 is in contact with the roller 8 (c). In this case, the weight 5 hits the roller 8 (c) and can strike and knock off ash and other materials adhering to the roller 8 (c) of the conveyor chain.

In the position shown in Figure 6, the conveyor chain moves from left to right, and roller 8 (A) comes into contact with the tip of cam 7. As roller 8 (A) moves, cam 7 rotates around bearing 2, which in turn rotates shaft 3, lifting weight 5 attached to the tip of arm 4.

Furthermore, in the position shown in Figure 7, the conveyor chain moves from left to right, the center of roller 8 (A), the tip of cam 7, and the center of the bearing are aligned in a straight line, and the weight 5 attached to the tip of arm 4 is raised to its highest position.

As shown in Figure 8, when the conveyor chain moves further from left to right, the cam 7 that was in contact with the roller 8 (A) separates from the roller 8 (A), and the shaft 3 rotates clockwise, causing the weight 5 that had been lifted up until then to strike the top of the roller 8 (B) due to its own weight.

This impact can knock off ash and other debris adhering to the roller 8. If the roller 8 is already stuck or if the chain is not properly bent, the impact can resolve the stuck condition. In addition, the hammer can knock off any transported material adhering to the scraper 11 attached to the chain by striking the roller.

The conveyor chain adhesion prevention device of the present invention does not need to be operated all the time, but can be set to operate when the amount of adhesion on the conveyor chain increases. For example, when not in use, the pin 13 can be engaged with the fixed portion 12 and the cam 7 can be raised so that it does not come into contact with the roller 8, preventing the adhesion prevention device from operating. This prevents unnecessary power consumption and noise.

The present invention provides a device for preventing adhesion of such ash and the like to a conveyor chain, which prevents the rollers from rotating poorly and the conveyor chain from bending poorly due to the adhesion.
Example 2
The second embodiment is particularly effective when the height of the conveyor scraper is large.

By providing two shafts, one on the left and one on the right, anti-adhesion devices can be attached to both the left and right chains.

Figure 9 is a front view of a conveyor chain adhesion prevention device showing another embodiment of the present invention.

In Figure 9, 14 is a base, which is installed on the left side of the two-strand conveyor chain. 15 and 16 are bearings, which are attached to the base 14. The bearings 15 and 16 can be adjusted by changing the mounting position of the base 14.

17 is the shaft, which passes through the left and right bearings 15 and 16 and can rotate within the bearings 15 and 16.

18 is an arm, which is fixed to the shaft 17. The length, shape, strength, etc. of the arm 18 can be adjusted as appropriate.

19 is a weight that is attached to the tip of the arm 18. The weight, size, material, etc. of the weight 19 can be adjusted as appropriate. The attachment position of the weight 19 can also be adjusted as appropriate at the tip of the arm 18. The weight 19 can also be provided rotatably without being fixed to the arm 18.

20 is a roller that makes up the conveyor chain and is fixed with a plate and pin.

21 is a cam that can be inserted between the plates that make up the conveyor chain.

The cam 21 is capable of lifting the weight 19 by contacting the roller 20.

A similar adhesion prevention device will also be installed on the right side.

In Fig. 9, reference numeral 22 denotes a base, which is provided on the right side of the two-strand conveyor chain. Reference numerals 23 and 24 denote bearings, which are attached to the base 22. The bearings 23 and 24 can be adjusted by changing the mounting position of the base 22.
Reference numeral 25 denotes a shaft which is provided so as to pass through the bearings 23 and 24 and is rotatable within the bearings 23 and 24 .

26 is an arm that is fixed to the shaft 25. The length, shape, strength, etc. of the arm 26 can be adjusted as appropriate.

27 is a weight that is attached to the tip of the arm 26. The weight, size, material, etc. of the weight 27 can be adjusted as appropriate. The attachment position of the weight 27 can also be adjusted as appropriate at the tip of the arm 26. The weight 27 can also be provided rotatably without being fixed to the arm 26.

28 is a roller that constitutes the conveyor chain and is fixed with a plate and pin.

29 is a cam that can be inserted between the plates that make up the conveyor chain. 30 is a scraper that is attached to the conveyor chain and allows the transport of transported objects. In particular, when the scraper 30 is large, it is effective to install anti-adhesion devices on the left and right. Also, by installing anti-adhesion devices on the left and right, it is possible to check the difference in length between the left and right chains.

The cam 29 is capable of lifting the weight 27 by contacting the roller 28.

The way the cam comes into contact with the roller and operates is the same as in Example 1.

When the adhesion prevention devices are installed separately on the left and right as in Example 2, the positions where the left and right cams contact the roller are adjusted so that the hammers strike the roller at the same time.

As the chain conveyor continues to operate, if the chain begins to bend improperly, causing a difference in length between the left and right chains, the hammers will not be able to strike the rollers at the same time, and the abnormality can be confirmed by the sound that is produced.

Sound can also be converted into light signals, making it possible to check for differences in chain length even through remote control. For example, if the sound of a hammer is picked up by a microphone, converted into an electrical signal, and a lamp is turned on, it is possible to determine the difference in length between the left and right chains.

In addition, if the difference in length between the left and right chains is due to a problem with either the left or right chain, this can be resolved by concentrating the operation of the adhesion prevention device on only one of the left or right chains.

By being able to maintain the chain in good condition for a longer period of time, maintenance time is reduced and the chain components last longer.

In addition, the elimination of bending adhesion allows the rollers to rotate smoothly, eliminating friction with the rail caused by poor rotation and reducing wear due to friction.

In addition, because the chain is in a normal condition, it is possible to monitor the chain tension and measure the exact tension, improving the accuracy of "visualization" of the conveyor chain's operating status, making it a device that can more accurately predict changes in the conveyor over time and failures.

Furthermore, by preventing bending defects in the conveyor chain, the forward and reverse rotation of the conveyor chain can be automated, making the conveyor operation more efficient.

Here is an example of how the anti-adhesion device for a conveyor chain of the present invention is installed.

Figure 18 is an explanatory diagram of the overall side of a scraper conveyor, and is a diagram explaining an example of the installation state of the anti-adhesion device for a conveyor chain of the present invention. The scraper conveyor shown in Figure 17 is of the top return type, but it can also be used with other scraper conveyors.

In FIG. 18, 37 is a casing, which is a transport path for transported objects. 38 is a drive shaft, which is provided inside the casing 37. 39 is a driven shaft, which rotates via a conveyor chain in response to the drive from the drive shaft 38. This driven shaft 39 rotates in response to the drive from the drive shaft 38. 40 is a head sprocket, which transmits the rotation of the drive shaft 38. 41 is a motor, which drives the head sprocket 40. 42 is a tail sprocket, which corresponds to the head sprocket 40 and plays a role in transmitting the drive of the drive shaft 38 to the driven shaft 39.

43 is a guide rail, and 44 indicates the path along which the conveyor chain passes. The conveyor chain can be moved along the guide rail 43.

31 is a conveyor chain and 8 is a roller. A chain is made up of multiple conveyor chains 31 and rollers 8 connected together. Figure 17 shows only a portion of the conveyor chains and rollers.

10 is a scraper, which is attached to a conveyor chain 31 and transports the object. Multiple scrapers 10 are provided at regular intervals. The conveyor chain 31 serves to transmit the rotation of a drive shaft 38 that moves the scraper 10 to a driven shaft 39.

45 is the inlet for incineration ash. 46 indicates the incineration ash that is fed from the inlet 45. The incineration ash 46 is transported by the scraper 10 and carried to the discharge outlet 47. The incineration ash also contains ash that contains moisture.

The scraper conveyor shown in Figure 18 is a type of conveyor known as a top return type, and as shown in the figure, the scraper 10 moves in the direction of arrow A as it passes through the top, and as it passes through the bottom, the scraper 10 transports the incineration ash that has been fed in through the incineration ash inlet 45 and moves it to the discharge outlet 47.

In the case of a top-return scraper conveyor, the scraper 10 moving at the top in the direction of arrow A is not carrying any goods, while the scraper 10 moving at the bottom in the direction of arrow B is carrying goods.

As shown in Figure 17, by installing the conveyor chain adhesion prevention device of the present invention, the rollers of the conveyor chain can be struck by the adhesion prevention device in accordance with the movement of the conveyor chain.

This invention is a device for preventing the adhesion of ash and other materials that have gotten into the gaps in the conveyor chain, and provides a device that can reduce wear on the conveyor chain by applying impact with a weight, without causing the conveyor chain to bend poorly.

In addition, because the present invention is a mechanical structure that moves in sync with the movement of the conveyor chain, it is easy to install the adhesion prevention device on an existing conveyor. In addition, because the device does not require electrical signals or control, it also saves energy.

In addition, by ensuring that the conveyor chain operates smoothly, the tension on the conveyor chain can be measured, allowing users to understand the conditions under which the conveyor is being operated and transported, which can contribute to "visualization of operation," "prediction of breakdowns," "operational support," "labor saving," and "decarbonization."

Furthermore, by preventing bending defects in the conveyor chain, the forward and reverse rotation of the conveyor chain can be automated, making the conveyor operation more efficient.

1 Pedestal 2 Bearing 3 Shaft 4 Arm 5 Weight 6 Plate 7 Cam 8 Roller 9 Stopper 10 Scraper 11 Guide rail 12 Fixed part 13 Pin 14 Pedestal 15 Bearing 16 Bearing 17 Shaft 18 Arm 19 Weight 20 Roller 21 Cam 22 Pedestal 23 Bearing 24 Bearing 25 Shaft 26 Arm 27 Weight 28 Roller 29 Cam 30 Scraper 31 Conveyor chain 32 Inner ring 33 Outer ring 34 Pin 35 Bush 36 T-pin 37 Casing 38 Drive shaft 39 Driven shaft 40 Head sprocket 41 Motor 42 Tail sprocket 43 Guide rail 44 Conveyor chain path 45 Input port 46 Incinerator ash 47 Discharge port

Claims (7)

A pedestal is installed on both sides of the double-strand conveyor chain,
Two bearings attached to the base;
A rotatable shaft passing through the bearing;
An arm fixed to the shaft;
A weight attached to the tip of the arm;
a cam fixed to the shaft and insertable between plates of the conveyor chain;
In accordance with the movement of the conveyor chain, the cam comes into contact with the roller of the conveyor chain, causing the shaft to rotate and lifting the weight attached to the tip of the arm.
A device for preventing adhesion of a conveyor chain, characterized in that when the cam is released from contact with the roller of the conveyor chain, the weight strikes the roller of the conveyor chain. The left and right bases are installed on both sides of the two-strand conveyor chain,
Left and right bearings attached to the left and right pedestals;
Left and right shafts passing through the left and right bearings and rotatable therethrough;
Left and right arms fixed to the left and right shafts;
Left and right weights attached to the tips of the left and right arms;
and left and right cams fixed to the left and right shafts and insertable between plates of the conveyor chain;
In accordance with the movement of the conveyor chain, the left and right cams come into contact with the rollers of the conveyor chain, thereby rotating the left and right shafts and lifting the left and right weights attached to the tips of the left and right arms,
A device for preventing adhesion of a conveyor chain, characterized in that when the left and right cams are released from contact with the rollers of the conveyor chain, the left and right weights strike the rollers of the conveyor chain separately on the left and right. The conveyor chain adhesion prevention device according to claim 1 or 2, characterized in that the position where the weight strikes the roller of the conveyor chain is a spaced position on the guide rail. The conveyor chain adhesion prevention device according to claim 1 or 2, characterized in that the position of the weight attached to the tip of the arm can be adjusted. The conveyor chain adhesion prevention device according to claim 1 or 2, characterized in that the position of the cam, the length of the arm, and the weight of the weight can be adjusted. The conveyor chain adhesion prevention device according to claim 1 or 2, characterized in that the arm can be fixed to the upper part so that the cam does not come into contact with the roller. 3. A conveyor chain adhesion prevention device as claimed in claim 2, characterized in that the device collects the sounds of the left and right weights striking the left and right rollers, respectively, confirms the difference between the left and right sounds, and is able to recognize the occurrence of elongation in the left and right chains, and calculates the difference in length between the left and right chains from the time difference between the left and right sounds.

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